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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In one dimensional flow, the flow

Takes place in one direction
Is steady and uniform
Takes place in curve
Takes place in straight line

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Hydraulics and Fluid Mechanics in ME
Newton's law of viscosity is a relationship between

Shear stress and rate of shear strain
Pressure, velocity and temperature
Rate of shear strain and temperature
Shear stress and velocity

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Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

w/h
h
h/w
wh

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Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

Steep
First rise and then fall
Horizontal
Nearly horizontal

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Hydraulics and Fluid Mechanics in ME
The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is

e > d > m
e > m > d
d > e > m
d > m > e

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantites are same

flow and length
length and diameter
friction loss and flow
friction factor and diameter

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